4.1 KiB
| id | title | permalink | prev | next |
|---|---|---|---|---|
| test-utils | Test Utilities | test-utils.html | class-name-manipulation.html | clone-with-props.html |
React.addons.TestUtils makes it easy to test React components in the testing framework of your choice (we use Jest).
Simulate
Simulate.{eventName}(DOMElement element, object eventData)
Simulate an event dispatch on a DOM node with optional eventData event data. This is possibly the single most useful utility in ReactTestUtils.
Example usage:
var node = this.refs.input.getDOMNode();
React.addons.TestUtils.Simulate.click(node);
React.addons.TestUtils.Simulate.change(node);
React.addons.TestUtils.Simulate.keyDown(node, {key: "Enter"});
Simulate has a method for every event that React understands.
renderIntoDocument
ReactComponent renderIntoDocument(ReactComponent instance)
Render a component into a detached DOM node in the document. This function requires a DOM.
mockComponent
object mockComponent(function componentClass, string? mockTagName)
Pass a mocked component module to this method to augment it with useful methods that allow it to be used as a dummy React component. Instead of rendering as usual, the component will become a simple <div> (or other tag if mockTagName is provided) containing any provided children.
isElementOfType
boolean isElementOfType(ReactElement element, function componentClass)
Returns true if element is a ReactElement whose type is of a React componentClass.
isDOMComponent
boolean isDOMComponent(ReactComponent instance)
Returns true if instance is a DOM component (such as a <div> or <span>).
isCompositeComponent
boolean isCompositeComponent(ReactComponent instance)`
Returns true if instance is a composite component (created with React.createClass())
isCompositeComponentWithType
boolean isCompositeComponentWithType(ReactComponent instance, function componentClass)
Returns true if instance is a composite component (created with React.createClass()) whose type is of a React componentClass.
findAllInRenderedTree
array findAllInRenderedTree(ReactComponent tree, function test)
Traverse all components in tree and accumulate all components where test(component) is true. This is not that useful on its own, but it's used as a primitive for other test utils.
scryRenderedDOMComponentsWithClass
array scryRenderedDOMComponentsWithClass(ReactComponent tree, string className)
Finds all instances of components in the rendered tree that are DOM components with the class name matching className.
findRenderedDOMComponentWithClass
ReactComponent findRenderedDOMComponentWithClass(ReactComponent tree, string className)
Like scryRenderedDOMComponentsWithClass() but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.
scryRenderedDOMComponentsWithTag
array scryRenderedDOMComponentsWithTag(ReactComponent tree, string tagName)
Finds all instances of components in the rendered tree that are DOM components with the tag name matching tagName.
findRenderedDOMComponentWithTag
ReactComponent findRenderedDOMComponentWithTag(ReactComponent tree, string tagName)
Like scryRenderedDOMComponentsWithTag() but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.
scryRenderedComponentsWithType
array scryRenderedComponentsWithType(ReactComponent tree, function componentClass)
Finds all instances of components with type equal to componentClass.
findRenderedComponentWithType
ReactComponent findRenderedComponentWithType(ReactComponent tree, function componentClass)
Same as scryRenderedComponentsWithType() but expects there to be one result and returns that one result, or throws exception if there is any other number of matches besides one.